What is the function of the tail rotor pylon?

The tail rotor pylon serves multiple functions: housing the tail rotor drive shaft, providing structural support for the tail rotor assembly, and contributing to directional control. The pylon acts as a protective structure for the drive shaft that transmits power from the main transmission to the tail rotor gearbox. It also provides a mounting point for the tail rotor gearbox, blades, and control mechanisms, ensuring they are securely attached to the helicopter. By changing the pitch of the tail rotor blades, the pilot can control the amount of thrust produced by the tail rotor, which is used to counteract the torque of the main rotor and provide directional control. The tail rotor pylon's design and construction are critical for maintaining the integrity and performance of the tail rotor system.